Port Antonio monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Port Antonio

Port Antonio average temperature chart (Celsius) Port Antonio average temperature chart (Fahrenheit)
Average monthly temperatures in Port Antonio (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27.7 27.9 28.3 28.6 28.6 29.2 30.1 30.3 29.6 28.7 28.4 28
°F 81.9 82.2 82.9 83.6 83.5 84.6 86.3 86.6 85.2 83.6 83 82.5

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Port Antonio monthly rainfall chart (mm) Port Antonio monthly rainfall chart (inches)
Average monthly rainfall in Port Antonio (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 134 118 76 126 240 225 154 213 252 385 318 207
inches 5.3 4.7 3 5 9.4 8.9 6.1 8.4 9.9 15.2 12.5 8.1
Rainy days 7 6 6 8 12 12 13 13 14 16 11 8

Average annual rainfall in Port Antonio: 2389.011mm (940.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Port Antonio

Port Antonio average daily sunshine chart
Average daily sunshine Port Antonio
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.6 7.8 7.9 8.3 6.9 7 7.9 7.6 6.6 6.4 6.7 6.9

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Port Antonio average minimum / maximum temperatures (Celsius) Port Antonio average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Port Antonio (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 17.5 17.7 18.5 19.3 20.3 21 21 21.2 21 20.6 19.7 18.5
Max °C 27.9 28.1 28.5 28.9 28.8 29.4 30.4 30.6 29.8 28.9 28.6 28.3
Min °F 63.5 63.8 65.4 66.8 68.6 69.8 69.7 70.1 69.7 69 67.5 65.2
Max °F 72.9 73.2 74.4 75.4 76.2 77.4 78.2 78.6 77.7 76.5 75.4 74.1

Sea temperature

The graph below shows the average sea temperature.

Port Antonio average sea temperature chart (Celsius) Port Antonio average sea temperature chart (Fahrenheit)
Average sea temperature around Port Antonio in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27.3 26.9 27 27.5 28.1 28.6 29 29.3 29.5 29.3 28.7 27.9
°F 81.1 80.5 80.5 81.5 82.6 83.5 84.1 84.8 85.1 84.7 83.6 82.2

Wind speed

The graph below shows the average wind speed.

Port Antonio average winspeed by month (km/h) Port Antonio average winspeed by month (mph)
Average wind speed in Port Antonio (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 12 12 13 13 11 11 12 11 10 9 11 12
mph 8 7 8 8 7 7 7 7 6 6 7 7

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Port Antonio relative humidity averages
Average relative humidity in Port Antonio
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
78% 77% 78% 78% 80% 79% 77% 79% 81% 83% 82% 79%

Other monthly averages

UV index Best time to go?

Port Antonio weather stats

Port Antonio weather statistics
Hottest month: August 30.3°C 86.5°F
Driest month: March 76mm 3ins
Sunniest month: January 7.6hrs
Coldest month: January 27.7°C 81.9°F
Wettest month: October 385mm 15.2ins
Warmest sea: September 29.5°C 85.1°F
Map showing location of Port Antonio (18.17998, -76.46121) Port Antonio map pin © Google

Locations nearby

Top Jamaica locations